Above-ground shelter



FIG. 1 is a top, front, and right side perspective view of an above-ground shelter showing my new design;

FIG. 2 is a top, right side, and rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a top plan view thereof, the bottom plan view being only one flat plane. 

CLAIM The ornamental design for an above-ground shelter, as shown and described. 